Ergonomic infant bath tub



FIG. 1 is a top perspective view of an ergonomic infant bath tub in accordance with the invention;

FIG. 2 is a side elevational view of the infant bath tub of FIG. 1;

FIG. 3 is a top plan view of the infant bath tub of FIG. 1;

FIG. 4 is a front elevational view of the infant bath tub of FIG. 1; and,

FIG. 5 is a rear elevational view of the infant bath tub of FIG. 1. 

I claim the ornamental design for an ergonomic infant bath tub, as shown and described. 